B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed

B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material

B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed

B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material

B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed

B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material

B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed

B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material

B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed

B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material

B41J2/01—Ink jet

B41J2/135—Nozzles

B41J2/14—Structure thereof only for on-demand ink jet heads

B41J2002/14346—Ejection by pressure produced by thermal deformation of ink chamber, e.g. buckling

Description

Translated from German

Die Erfindung betrifft eine Vorrichtung zum Abgeben einer Schreibflüssigkeit von einem Druckkopf und ein Verfahren zu ihrer Herstellung, nach dem Oberbegriff des Anspruches 1 bzw. 17 oder 18. The invention relates to a device for dispensing a writing fluid from a print head and a method for their preparation, according to the preamble of claim 1 and 17 or 18th

Infolgedessen ist es Aufgabe der in den Patentansprüchen gekennzeichneten Erfindung, die oben aufgeführten Probleme im Stand der Technik zu be seitigen. Consequently, it is up to the marked in the claims the invention, the above problems in the prior art to be sided.

Fig. 7 ein Blockdiagramm zur Erläuterung des Her stellungsvorganges des in einer Richtung wirkenden Dünnfilmes aus der Form/Gedächtnislegierung gemäß der vorliegenden Erfindung;7 is a block diagram for explaining the operation of the position Her unidirectional thin film from the mold / memory alloy according to the present invention.

Fig. 9 ein Blockdiagramm zur Erläuterung des Her stellungsvorganges des in zwei Richtungen wirkenden Dünnfilmes der Form/Gedächtnislegierung gemäß der vor liegenden Erfindung;9 is a block diagram for explaining the operation of the position Her bidirectional thin film of the shape / memory alloy according to the prior lying invention.

Fig. 10 eine grafische Darstellung der Aufheizzeit gegenüber der Temperatur des Dünnfilmes aus der Form/Gedächtnislegierung gemäß der vorliegenden Erfin dung;FIG. 10 is a graph of the heating time to the temperature of the thin film from the mold-making / memory alloy according to the present OF INVENTION;

und so die mittige Versetzung oder der mittige Hub δ m des Dünnfilms aus der Form/Gedächtnislegierung so definiert ist, daß and then the central or offset the central hub δ m of the thin film from the mold / memory alloy is so defined that